.tip {
     font:10px/12px Arial,Helvetica,sans-serif; 
     border:solid 1px #666666; 
     padding:1px;
     position:absolute; 
     z-index:100;
     visibility:hidden; 
     color:#333333; 
     top:20px;
     left:90px; 
     background-color:#ffffcc;
     layer-background-color:#ffffcc;
}
                  